21st ST over Addison CR
Poor Condition52 years old900 vehicles/day
Location
| State | Illinois |
| County | Cook |
| Location | 0.22mi.w. Of 17th Av |
| Carries | 21st ST |
| Crosses | Addison CR |
| Coordinates | 41.85114, -87.85698 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 2 (Critical) |
| Superstructure | 2 (Critical) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 82.0 ft (25 m) |
| Max Span | 30.8 ft (9.4 m) |
| Deck Width | 47.9 ft (14.6 m) |
| Deck Area | 365 sq m |
| Main Spans | 3 |
| Year Built | 1974 |
Traffic
| Avg Daily Traffic | 900 (2022) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2022 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 016665000000000 |